Abstract
The paper presents information about habitat conditions of occurrence of the Ptychoverpa bohemica (Krombh.) Boud. fungus in man-made habitats in Silesian Upland in southern Poland. Soil samples were collected from 5 sites in order to measure the contents of organic carbon, nitrogen, carbon/nitrogen ratio and percentage of organic matter, as well as the values of pH and electric conductivity. Lists of plants associated with Ptychoverpa bohemica were also prepared. Results of the investigation show that pH values of analysed soils are neutral to slightly acidic, they show negligible salinity, and the content of organic carbon, nitrogen and organic matter are higher in their upper levels. The floristic composition of patches with Ptychoverpa bohemica usually consists of species which are common in urban areas, such as apophytes and anthropophytes, for example: Betula pendula, Brachythecium rutabulum, Epipactis helleborine, Pinus sylvestris, Populus tremula, Quercus robur, Salix caprea and Sorbus aucuparia.